# CVE-2024-1086: Linux Kernel Use-After-Free Vulnerability

Source: https://junglewise.ai/threats/cve-2024-1086-linux-kernel-use-after-free-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-05-30. Updated: 2026-05-09  
License: CC BY 4.0 with a link back

CVE-2024-1086 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2024-05-30

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component allows for local privilege escalation. The nft_verdict_init() function incorrectly handles positive values as drop errors, leading to a double free in nf_hook_slow() when NF_DROP resembles NF_ACCEPT.

Technologies: [Linux Kernel](https://junglewise.ai/threats/technologies/kernel). Vendors: [Linux](https://junglewise.ai/threats/vendors/linux).

## Quick answers

**Is CVE-2024-1086 exploited in the wild?** Yes. CVE-2024-1086 is known to be exploited in the wild, first recorded on 30 May 2024. Treat it as urgent.

**How severe is CVE-2024-1086?** Critical severity, with a CVSS score of 7.8, published 30 May 2024.

**Which products and versions are affected?** Linux Linux Kernel versions prior to commit f342de4e2f33e0e39165d8639387aa6c19dff660.

**Is there a fix for CVE-2024-1086?** A patch was published on 2024-03-27: Commit f342de4e2f33e0e39165d8639387aa6c19dff660 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2024-1086 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2024-1086?** Check whether you run Linux Kernel. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Linux Linux Kernel versions prior to commit f342de4e2f33e0e39165d8639387aa6c19dff660

## Timeline

- 2024-05-30: disclosed
- 2024-05-30: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2024-03-27: patched: Commit f342de4e2f33e0e39165d8639387aa6c19dff660
- 2024-04-14: exploited: Public exploit availability noted in references

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